thickness gauge from dial indicator

Dial indicator adjustable thickness gauge, u need to tap two M8 holes and M8 screws you want (I made my own with a hacksaw and M8 threaded rod). And share ur makes please;)

ps: its really accurate for hobby standards. The Piece of paper is supposed to be 0.076mm thick, gauge shows around 0.075mm
the bit should have 6.35mm the gauge is spot on